Using Longitudinal Data Systems to Inform State Teacher Quality Efforts - This brief attempts to answer the following questions: what is driving the increased attention being placed on building statewide data systems; what the current national landscape is with regard to state data systems; is the stimulus funding requirements driving the current activity; what can be learning from linking teachers with students and what are the challenges in implementing reliable links; and, how can states build the capacity of their educators to use data effectively? (George Noell and Paige Kowalski, American Association of Colleges for Teacher Education, May 2010)...